A Donald Trump ally is under fire after calling Texas Rep. Sheila Jackson Lee, who served her Houston district for nearly 3 decades before dying of cancer at the age of 74, a “ghetto b—-.” Raw Story reported on Friday that Lee, who shared publicly in June she had been diagnosed with pancreatic cancer, had died. Laura Loomer, who has been repeatedly praised by the former president for digging up dirt on his political enemies, seized on the unfortunate development. “Even on her death bed, this ghetto b—- couldn’t keep President Trump’s name out of her disgusting mouth. I’d say rest in peace,…